First there was the app that turned your iPhone into a portable heater … then into an air blower … and of course the infamous watermelon ripeness detector. But all these useless useful applications pale in comparison to the dynasty of utilities one developer is pumping out … dude’s name is Holger Blumler … and his eccentric company is HMB-TEC.

Holger Blumler is an interesting fellow. Picture the freaky scientist Doc Brown from Back To The Future. But instead of tinkering with a DeLorean and the flux capacitor … Holger spends his time messing with the iPhone’s 3.5mm headphone jack. And with assorted external attachments (all available for sale on HMB-TEC’s site), coupled with correct calculations … when the iPhone launches Holger’s apps, you’re going to see some serious shit …

iPocketFanJust like it sounds … stick a propeller in the headphone jack, crank up the iPhone’s volume and boom … revolutionary refreshing air!

SoccerPlugForgive Holger … he’s from Germany and their soccer team is kicking major ass in the World Cup. So being a freak football fan, Holger couldn’t resist an app that waves the German (or any nation) flag from the iPhone accompanied by various obnoxious soccer sounds. Heartbreaking however that Holger didn’t develop a vuvuzela attachment.